Question

its side of an equilateral triangle is 10 cm long the height of a triangle is

Answer 1

Side = 10cm
Height = ?

Area of equilateral triangle = root 3/4 *(side) ^2

= Root 3 / 4 * (10)^2

= 25root 3

Now Apply area = 1/2 * b * h

25 root 3 = 1/2 * 10 * h

25 root 3 = 5h

(25root 3) / 5 = h

H = 5 root 3 cm


Thanks